mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 16:34:04 +02:00
d1a72c03d1
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17443 3c298f89-4303-0410-b956-a3cf2f4a3e73
99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/*
|
|
* Ralink RT288x SoC platform device registration
|
|
*
|
|
* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
|
|
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published
|
|
* by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/physmap.h>
|
|
|
|
#include <asm/addrspace.h>
|
|
|
|
#include <asm/mach-ralink/rt288x.h>
|
|
#include <asm/mach-ralink/rt288x_regs.h>
|
|
|
|
#include "devices.h"
|
|
|
|
static struct resource rt288x_flash0_resources[] = {
|
|
{
|
|
.flags = IORESOURCE_MEM,
|
|
.start = KSEG1ADDR(RT2880_FLASH0_BASE),
|
|
.end = KSEG1ADDR(RT2880_FLASH0_BASE) +
|
|
RT2880_FLASH0_SIZE - 1,
|
|
},
|
|
};
|
|
|
|
static struct platform_device rt288x_flash0_device = {
|
|
.name = "physmap-flash",
|
|
.resource = rt288x_flash0_resources,
|
|
.num_resources = ARRAY_SIZE(rt288x_flash0_resources),
|
|
};
|
|
|
|
static struct resource rt288x_flash1_resources[] = {
|
|
{
|
|
.flags = IORESOURCE_MEM,
|
|
.start = KSEG1ADDR(RT2880_FLASH1_BASE),
|
|
.end = KSEG1ADDR(RT2880_FLASH1_BASE) +
|
|
RT2880_FLASH1_SIZE - 1,
|
|
},
|
|
};
|
|
|
|
static struct platform_device rt288x_flash1_device = {
|
|
.name = "physmap-flash",
|
|
.resource = rt288x_flash1_resources,
|
|
.num_resources = ARRAY_SIZE(rt288x_flash1_resources),
|
|
};
|
|
|
|
static int rt288x_flash_instance __initdata;
|
|
void __init rt288x_register_flash(unsigned int id,
|
|
struct physmap_flash_data *pdata)
|
|
{
|
|
struct platform_device *pdev;
|
|
u32 t;
|
|
int reg;
|
|
|
|
switch (id) {
|
|
case 0:
|
|
pdev = &rt288x_flash0_device;
|
|
reg = MEMC_REG_FLASH_CFG0;
|
|
break;
|
|
case 1:
|
|
pdev = &rt288x_flash1_device;
|
|
reg = MEMC_REG_FLASH_CFG1;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
t = rt288x_memc_rr(reg);
|
|
t = (t >> FLASH_CFG_WIDTH_SHIFT) & FLASH_CFG_WIDTH_MASK;
|
|
|
|
switch (t) {
|
|
case FLASH_CFG_WIDTH_8BIT:
|
|
pdata->width = 1;
|
|
break;
|
|
case FLASH_CFG_WIDTH_16BIT:
|
|
pdata->width = 2;
|
|
break;
|
|
case FLASH_CFG_WIDTH_32BIT:
|
|
pdata->width = 4;
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "RT288x: flash bank%u witdh is invalid\n", id);
|
|
return;
|
|
}
|
|
|
|
pdev->dev.platform_data = pdata;
|
|
pdev->id = rt288x_flash_instance;
|
|
|
|
platform_device_register(pdev);
|
|
rt288x_flash_instance++;
|
|
}
|